CD Rom Software included to adjust your preferences to suit your individual needs. Such as: adjust lighting conditions of the illuminated keys in three different colours, red, blue and green.The software also has a built-in power save function to save battery power when you are away for a long period of time. If you are an avid gamer, musician, or designer to name a few, the left and right function keys, plus the gimbol action can be re-configured to suit the needs of the individual user.